1 /* 2 * Copyright 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_SF_HWC2_ON_1_ADAPTER_H 18 #define ANDROID_SF_HWC2_ON_1_ADAPTER_H 19 20 #define HWC2_INCLUDE_STRINGIFICATION 21 #define HWC2_USE_CPP11 22 #include <hardware/hwcomposer2.h> 23 #undef HWC2_INCLUDE_STRINGIFICATION 24 #undef HWC2_USE_CPP11 25 26 #include <ui/Fence.h> 27 28 #include <atomic> 29 #include <map> 30 #include <mutex> 31 #include <queue> 32 #include <set> 33 #include <unordered_map> 34 #include <unordered_set> 35 #include <vector> 36 37 struct hwc_composer_device_1; 38 struct hwc_display_contents_1; 39 struct hwc_layer_1; 40 41 namespace android { 42 43 class HWC2On1Adapter : public hwc2_device_t 44 { 45 public: 46 explicit HWC2On1Adapter(struct hwc_composer_device_1* hwc1Device); 47 ~HWC2On1Adapter(); 48 getHwc1Device()49 struct hwc_composer_device_1* getHwc1Device() const { return mHwc1Device; } getHwc1MinorVersion()50 uint8_t getHwc1MinorVersion() const { return mHwc1MinorVersion; } 51 52 private: getAdapter(hwc2_device_t * device)53 static inline HWC2On1Adapter* getAdapter(hwc2_device_t* device) { 54 return static_cast<HWC2On1Adapter*>(device); 55 } 56 57 // getCapabilities 58 59 void doGetCapabilities(uint32_t* outCount, 60 int32_t* /*hwc2_capability_t*/ outCapabilities); getCapabilitiesHook(hwc2_device_t * device,uint32_t * outCount,int32_t * outCapabilities)61 static void getCapabilitiesHook(hwc2_device_t* device, uint32_t* outCount, 62 int32_t* /*hwc2_capability_t*/ outCapabilities) { 63 getAdapter(device)->doGetCapabilities(outCount, outCapabilities); 64 } 65 66 // getFunction 67 68 hwc2_function_pointer_t doGetFunction(HWC2::FunctionDescriptor descriptor); getFunctionHook(hwc2_device_t * device,int32_t intDesc)69 static hwc2_function_pointer_t getFunctionHook(hwc2_device_t* device, 70 int32_t intDesc) { 71 auto descriptor = static_cast<HWC2::FunctionDescriptor>(intDesc); 72 return getAdapter(device)->doGetFunction(descriptor); 73 } 74 75 // Device functions 76 77 HWC2::Error createVirtualDisplay(uint32_t width, uint32_t height, 78 hwc2_display_t* outDisplay); createVirtualDisplayHook(hwc2_device_t * device,uint32_t width,uint32_t height,int32_t *,hwc2_display_t * outDisplay)79 static int32_t createVirtualDisplayHook(hwc2_device_t* device, 80 uint32_t width, uint32_t height, int32_t* /*format*/, 81 hwc2_display_t* outDisplay) { 82 // HWC1 implementations cannot override the buffer format requested by 83 // the consumer 84 auto error = getAdapter(device)->createVirtualDisplay(width, height, 85 outDisplay); 86 return static_cast<int32_t>(error); 87 } 88 89 HWC2::Error destroyVirtualDisplay(hwc2_display_t display); destroyVirtualDisplayHook(hwc2_device_t * device,hwc2_display_t display)90 static int32_t destroyVirtualDisplayHook(hwc2_device_t* device, 91 hwc2_display_t display) { 92 auto error = getAdapter(device)->destroyVirtualDisplay(display); 93 return static_cast<int32_t>(error); 94 } 95 96 std::string mDumpString; 97 void dump(uint32_t* outSize, char* outBuffer); dumpHook(hwc2_device_t * device,uint32_t * outSize,char * outBuffer)98 static void dumpHook(hwc2_device_t* device, uint32_t* outSize, 99 char* outBuffer) { 100 getAdapter(device)->dump(outSize, outBuffer); 101 } 102 103 uint32_t getMaxVirtualDisplayCount(); getMaxVirtualDisplayCountHook(hwc2_device_t * device)104 static uint32_t getMaxVirtualDisplayCountHook(hwc2_device_t* device) { 105 return getAdapter(device)->getMaxVirtualDisplayCount(); 106 } 107 108 HWC2::Error registerCallback(HWC2::Callback descriptor, 109 hwc2_callback_data_t callbackData, hwc2_function_pointer_t pointer); registerCallbackHook(hwc2_device_t * device,int32_t intDesc,hwc2_callback_data_t callbackData,hwc2_function_pointer_t pointer)110 static int32_t registerCallbackHook(hwc2_device_t* device, 111 int32_t intDesc, hwc2_callback_data_t callbackData, 112 hwc2_function_pointer_t pointer) { 113 auto descriptor = static_cast<HWC2::Callback>(intDesc); 114 auto error = getAdapter(device)->registerCallback(descriptor, 115 callbackData, pointer); 116 return static_cast<int32_t>(error); 117 } 118 119 // Display functions 120 121 class Layer; 122 123 class SortLayersByZ { 124 public: 125 bool operator()(const std::shared_ptr<Layer>& lhs, 126 const std::shared_ptr<Layer>& rhs); 127 }; 128 129 class DisplayContentsDeleter { 130 public: 131 void operator()(struct hwc_display_contents_1* contents); 132 }; 133 134 class DeferredFence { 135 public: DeferredFence()136 DeferredFence() 137 : mMutex(), 138 mFences({Fence::NO_FENCE, Fence::NO_FENCE}) {} 139 add(int32_t fenceFd)140 void add(int32_t fenceFd) { 141 mFences.emplace(new Fence(fenceFd)); 142 mFences.pop(); 143 } 144 get()145 const sp<Fence>& get() const { 146 return mFences.front(); 147 } 148 149 private: 150 mutable std::mutex mMutex; 151 std::queue<sp<Fence>> mFences; 152 }; 153 154 class FencedBuffer { 155 public: FencedBuffer()156 FencedBuffer() : mBuffer(nullptr), mFence(Fence::NO_FENCE) {} 157 setBuffer(buffer_handle_t buffer)158 void setBuffer(buffer_handle_t buffer) { mBuffer = buffer; } setFence(int fenceFd)159 void setFence(int fenceFd) { mFence = new Fence(fenceFd); } 160 getBuffer()161 buffer_handle_t getBuffer() const { return mBuffer; } getFence()162 int getFence() const { return mFence->dup(); } 163 164 private: 165 buffer_handle_t mBuffer; 166 sp<Fence> mFence; 167 }; 168 169 class Display { 170 public: 171 typedef std::unique_ptr<hwc_display_contents_1, 172 DisplayContentsDeleter> HWC1Contents; 173 174 Display(HWC2On1Adapter& device, HWC2::DisplayType type); 175 getId()176 hwc2_display_t getId() const { return mId; } getDevice()177 HWC2On1Adapter& getDevice() const { return mDevice; } 178 179 // Does not require locking because it is set before adding the 180 // Displays to the Adapter's list of displays setHwc1Id(int32_t id)181 void setHwc1Id(int32_t id) { mHwc1Id = id; } getHwc1Id()182 int32_t getHwc1Id() const { return mHwc1Id; } 183 incDirty()184 void incDirty() { ++mDirtyCount; } decDirty()185 void decDirty() { --mDirtyCount; } isDirty()186 bool isDirty() const { return mDirtyCount > 0 || mZIsDirty; } 187 188 // HWC2 Display functions 189 HWC2::Error acceptChanges(); 190 HWC2::Error createLayer(hwc2_layer_t* outLayerId); 191 HWC2::Error destroyLayer(hwc2_layer_t layerId); 192 HWC2::Error getActiveConfig(hwc2_config_t* outConfigId); 193 HWC2::Error getAttribute(hwc2_config_t configId, 194 HWC2::Attribute attribute, int32_t* outValue); 195 HWC2::Error getChangedCompositionTypes(uint32_t* outNumElements, 196 hwc2_layer_t* outLayers, int32_t* outTypes); 197 HWC2::Error getColorModes(uint32_t* outNumModes, int32_t* outModes); 198 HWC2::Error getConfigs(uint32_t* outNumConfigs, 199 hwc2_config_t* outConfigIds); 200 HWC2::Error getDozeSupport(int32_t* outSupport); 201 HWC2::Error getHdrCapabilities(uint32_t* outNumTypes, 202 int32_t* outTypes, float* outMaxLuminance, 203 float* outMaxAverageLuminance, float* outMinLuminance); 204 HWC2::Error getName(uint32_t* outSize, char* outName); 205 HWC2::Error getReleaseFences(uint32_t* outNumElements, 206 hwc2_layer_t* outLayers, int32_t* outFences); 207 HWC2::Error getRequests(int32_t* outDisplayRequests, 208 uint32_t* outNumElements, hwc2_layer_t* outLayers, 209 int32_t* outLayerRequests); 210 HWC2::Error getType(int32_t* outType); 211 HWC2::Error present(int32_t* outRetireFence); 212 HWC2::Error setActiveConfig(hwc2_config_t configId); 213 HWC2::Error setClientTarget(buffer_handle_t target, 214 int32_t acquireFence, int32_t dataspace, 215 hwc_region_t damage); 216 HWC2::Error setColorMode(android_color_mode_t mode); 217 HWC2::Error setColorTransform(android_color_transform_t hint); 218 HWC2::Error setOutputBuffer(buffer_handle_t buffer, 219 int32_t releaseFence); 220 HWC2::Error setPowerMode(HWC2::PowerMode mode); 221 HWC2::Error setVsyncEnabled(HWC2::Vsync enabled); 222 HWC2::Error validate(uint32_t* outNumTypes, 223 uint32_t* outNumRequests); 224 225 HWC2::Error updateLayerZ(hwc2_layer_t layerId, uint32_t z); 226 227 // Read configs from HWC1 device 228 void populateConfigs(); 229 230 // Set configs for a virtual display 231 void populateConfigs(uint32_t width, uint32_t height); 232 233 bool prepare(); 234 HWC1Contents cloneRequestedContents() const; 235 void setReceivedContents(HWC1Contents contents); 236 bool hasChanges() const; 237 HWC2::Error set(hwc_display_contents_1& hwcContents); 238 void addRetireFence(int fenceFd); 239 void addReleaseFences(const hwc_display_contents_1& hwcContents); 240 241 bool hasColorTransform() const; 242 243 std::string dump() const; 244 245 private: 246 class Config { 247 public: Config(Display & display)248 Config(Display& display) 249 : mDisplay(display), 250 mId(0), 251 mAttributes() {} 252 isOnDisplay(const Display & display)253 bool isOnDisplay(const Display& display) const { 254 return display.getId() == mDisplay.getId(); 255 } 256 257 void setAttribute(HWC2::Attribute attribute, int32_t value); 258 int32_t getAttribute(HWC2::Attribute attribute) const; 259 260 void setHwc1Id(uint32_t id); 261 bool hasHwc1Id(uint32_t id) const; 262 HWC2::Error getColorModeForHwc1Id(uint32_t id, 263 android_color_mode_t *outMode) const; 264 HWC2::Error getHwc1IdForColorMode(android_color_mode_t mode, 265 uint32_t* outId) const; 266 setId(hwc2_config_t id)267 void setId(hwc2_config_t id) { mId = id; } getId()268 hwc2_config_t getId() const { return mId; } 269 270 // Attempts to merge two configs that differ only in color 271 // mode. Returns whether the merge was successful 272 bool merge(const Config& other); 273 274 std::set<android_color_mode_t> getColorModes() const; 275 276 // splitLine divides the output into two lines suitable for 277 // dumpsys SurfaceFlinger 278 std::string toString(bool splitLine = false) const; 279 280 private: 281 Display& mDisplay; 282 hwc2_config_t mId; 283 std::unordered_map<HWC2::Attribute, int32_t> mAttributes; 284 285 // Maps from color transform to HWC1 config ID 286 std::unordered_map<android_color_mode_t, uint32_t> mHwc1Ids; 287 }; 288 289 class Changes { 290 public: getNumTypes()291 uint32_t getNumTypes() const { 292 return static_cast<uint32_t>(mTypeChanges.size()); 293 } 294 getNumLayerRequests()295 uint32_t getNumLayerRequests() const { 296 return static_cast<uint32_t>(mLayerRequests.size()); 297 } 298 299 const std::unordered_map<hwc2_layer_t, HWC2::Composition>& getTypeChanges()300 getTypeChanges() const { 301 return mTypeChanges; 302 } 303 304 const std::unordered_map<hwc2_layer_t, HWC2::LayerRequest>& getLayerRequests()305 getLayerRequests() const { 306 return mLayerRequests; 307 } 308 getDisplayRequests()309 int32_t getDisplayRequests() const { 310 int32_t requests = 0; 311 for (auto request : mDisplayRequests) { 312 requests |= static_cast<int32_t>(request); 313 } 314 return requests; 315 } 316 addTypeChange(hwc2_layer_t layerId,HWC2::Composition type)317 void addTypeChange(hwc2_layer_t layerId, 318 HWC2::Composition type) { 319 mTypeChanges.insert({layerId, type}); 320 } 321 clearTypeChanges()322 void clearTypeChanges() { mTypeChanges.clear(); } 323 addLayerRequest(hwc2_layer_t layerId,HWC2::LayerRequest request)324 void addLayerRequest(hwc2_layer_t layerId, 325 HWC2::LayerRequest request) { 326 mLayerRequests.insert({layerId, request}); 327 } 328 329 private: 330 std::unordered_map<hwc2_layer_t, HWC2::Composition> 331 mTypeChanges; 332 std::unordered_map<hwc2_layer_t, HWC2::LayerRequest> 333 mLayerRequests; 334 std::unordered_set<HWC2::DisplayRequest> mDisplayRequests; 335 }; 336 337 std::shared_ptr<const Config> 338 getConfig(hwc2_config_t configId) const; 339 340 void populateColorModes(); 341 void initializeActiveConfig(); 342 343 void reallocateHwc1Contents(); 344 void assignHwc1LayerIds(); 345 346 void updateTypeChanges(const struct hwc_layer_1& hwc1Layer, 347 const Layer& layer); 348 void updateLayerRequests(const struct hwc_layer_1& hwc1Layer, 349 const Layer& layer); 350 351 void prepareFramebufferTarget(); 352 353 static std::atomic<hwc2_display_t> sNextId; 354 const hwc2_display_t mId; 355 HWC2On1Adapter& mDevice; 356 357 std::atomic<size_t> mDirtyCount; 358 359 // The state of this display should only be modified from 360 // SurfaceFlinger's main loop, with the exception of when dump is 361 // called. To prevent a bad state from crashing us during a dump 362 // call, all public calls into Display must acquire this mutex. 363 // 364 // It is recursive because we don't want to deadlock in validate 365 // (or present) when we call HWC2On1Adapter::prepareAllDisplays 366 // (or setAllDisplays), which calls back into Display functions 367 // which require locking. 368 mutable std::recursive_mutex mStateMutex; 369 370 bool mZIsDirty; 371 HWC1Contents mHwc1RequestedContents; 372 HWC1Contents mHwc1ReceivedContents; 373 DeferredFence mRetireFence; 374 375 // Will only be non-null after the layer has been validated but 376 // before it has been presented 377 std::unique_ptr<Changes> mChanges; 378 379 int32_t mHwc1Id; 380 381 std::vector<std::shared_ptr<Config>> mConfigs; 382 std::shared_ptr<const Config> mActiveConfig; 383 std::set<android_color_mode_t> mColorModes; 384 android_color_mode_t mActiveColorMode; 385 std::string mName; 386 HWC2::DisplayType mType; 387 HWC2::PowerMode mPowerMode; 388 HWC2::Vsync mVsyncEnabled; 389 390 FencedBuffer mClientTarget; 391 FencedBuffer mOutputBuffer; 392 393 bool mHasColorTransform; 394 395 std::multiset<std::shared_ptr<Layer>, SortLayersByZ> mLayers; 396 std::unordered_map<size_t, std::shared_ptr<Layer>> mHwc1LayerMap; 397 }; 398 399 template <typename ...Args> callDisplayFunction(hwc2_device_t * device,hwc2_display_t displayId,HWC2::Error (Display::* member)(Args...),Args...args)400 static int32_t callDisplayFunction(hwc2_device_t* device, 401 hwc2_display_t displayId, HWC2::Error (Display::*member)(Args...), 402 Args... args) { 403 auto display = getAdapter(device)->getDisplay(displayId); 404 if (!display) { 405 return static_cast<int32_t>(HWC2::Error::BadDisplay); 406 } 407 auto error = ((*display).*member)(std::forward<Args>(args)...); 408 return static_cast<int32_t>(error); 409 } 410 411 template <typename MF, MF memFunc, typename ...Args> displayHook(hwc2_device_t * device,hwc2_display_t displayId,Args...args)412 static int32_t displayHook(hwc2_device_t* device, hwc2_display_t displayId, 413 Args... args) { 414 return HWC2On1Adapter::callDisplayFunction(device, displayId, memFunc, 415 std::forward<Args>(args)...); 416 } 417 getDisplayAttributeHook(hwc2_device_t * device,hwc2_display_t display,hwc2_config_t config,int32_t intAttribute,int32_t * outValue)418 static int32_t getDisplayAttributeHook(hwc2_device_t* device, 419 hwc2_display_t display, hwc2_config_t config, 420 int32_t intAttribute, int32_t* outValue) { 421 auto attribute = static_cast<HWC2::Attribute>(intAttribute); 422 return callDisplayFunction(device, display, &Display::getAttribute, 423 config, attribute, outValue); 424 } 425 setColorTransformHook(hwc2_device_t * device,hwc2_display_t display,const float *,int32_t intHint)426 static int32_t setColorTransformHook(hwc2_device_t* device, 427 hwc2_display_t display, const float* /*matrix*/, 428 int32_t /*android_color_transform_t*/ intHint) { 429 // We intentionally throw away the matrix, because if the hint is 430 // anything other than IDENTITY, we have to fall back to client 431 // composition anyway 432 auto hint = static_cast<android_color_transform_t>(intHint); 433 return callDisplayFunction(device, display, &Display::setColorTransform, 434 hint); 435 } 436 setColorModeHook(hwc2_device_t * device,hwc2_display_t display,int32_t intMode)437 static int32_t setColorModeHook(hwc2_device_t* device, 438 hwc2_display_t display, int32_t /*android_color_mode_t*/ intMode) { 439 auto mode = static_cast<android_color_mode_t>(intMode); 440 return callDisplayFunction(device, display, &Display::setColorMode, mode); 441 } 442 setPowerModeHook(hwc2_device_t * device,hwc2_display_t display,int32_t intMode)443 static int32_t setPowerModeHook(hwc2_device_t* device, 444 hwc2_display_t display, int32_t intMode) { 445 auto mode = static_cast<HWC2::PowerMode>(intMode); 446 return callDisplayFunction(device, display, &Display::setPowerMode, 447 mode); 448 } 449 setVsyncEnabledHook(hwc2_device_t * device,hwc2_display_t display,int32_t intEnabled)450 static int32_t setVsyncEnabledHook(hwc2_device_t* device, 451 hwc2_display_t display, int32_t intEnabled) { 452 auto enabled = static_cast<HWC2::Vsync>(intEnabled); 453 return callDisplayFunction(device, display, &Display::setVsyncEnabled, 454 enabled); 455 } 456 457 // Layer functions 458 459 template <typename T> 460 class LatchedState { 461 public: LatchedState(Layer & parent,T initialValue)462 LatchedState(Layer& parent, T initialValue) 463 : mParent(parent), 464 mPendingValue(initialValue), 465 mValue(initialValue) {} 466 setPending(T value)467 void setPending(T value) { 468 if (value == mPendingValue) { 469 return; 470 } 471 if (mPendingValue == mValue) { 472 mParent.incDirty(); 473 } else if (value == mValue) { 474 mParent.decDirty(); 475 } 476 mPendingValue = value; 477 } 478 getValue()479 T getValue() const { return mValue; } getPendingValue()480 T getPendingValue() const { return mPendingValue; } 481 isDirty()482 bool isDirty() const { return mPendingValue != mValue; } 483 latch()484 void latch() { 485 if (isDirty()) { 486 mValue = mPendingValue; 487 mParent.decDirty(); 488 } 489 } 490 491 private: 492 Layer& mParent; 493 T mPendingValue; 494 T mValue; 495 }; 496 497 class Layer { 498 public: 499 explicit Layer(Display& display); 500 501 bool operator==(const Layer& other) { return mId == other.mId; } 502 bool operator!=(const Layer& other) { return !(*this == other); } 503 getId()504 hwc2_layer_t getId() const { return mId; } getDisplay()505 Display& getDisplay() const { return mDisplay; } 506 incDirty()507 void incDirty() { if (mDirtyCount++ == 0) mDisplay.incDirty(); } decDirty()508 void decDirty() { if (--mDirtyCount == 0) mDisplay.decDirty(); } isDirty()509 bool isDirty() const { return mDirtyCount > 0; } 510 511 // HWC2 Layer functions 512 HWC2::Error setBuffer(buffer_handle_t buffer, int32_t acquireFence); 513 HWC2::Error setCursorPosition(int32_t x, int32_t y); 514 HWC2::Error setSurfaceDamage(hwc_region_t damage); 515 516 // HWC2 Layer state functions 517 HWC2::Error setBlendMode(HWC2::BlendMode mode); 518 HWC2::Error setColor(hwc_color_t color); 519 HWC2::Error setCompositionType(HWC2::Composition type); 520 HWC2::Error setDataspace(android_dataspace_t dataspace); 521 HWC2::Error setDisplayFrame(hwc_rect_t frame); 522 HWC2::Error setPlaneAlpha(float alpha); 523 HWC2::Error setSidebandStream(const native_handle_t* stream); 524 HWC2::Error setSourceCrop(hwc_frect_t crop); 525 HWC2::Error setTransform(HWC2::Transform transform); 526 HWC2::Error setVisibleRegion(hwc_region_t visible); 527 HWC2::Error setZ(uint32_t z); 528 getCompositionType()529 HWC2::Composition getCompositionType() const { 530 return mCompositionType.getValue(); 531 } getZ()532 uint32_t getZ() const { return mZ; } 533 534 void addReleaseFence(int fenceFd); 535 const sp<Fence>& getReleaseFence() const; 536 setHwc1Id(size_t id)537 void setHwc1Id(size_t id) { mHwc1Id = id; } getHwc1Id()538 size_t getHwc1Id() const { return mHwc1Id; } 539 540 void applyState(struct hwc_layer_1& hwc1Layer, bool applyAllState); 541 542 std::string dump() const; 543 544 private: 545 void applyCommonState(struct hwc_layer_1& hwc1Layer, 546 bool applyAllState); 547 void applySolidColorState(struct hwc_layer_1& hwc1Layer, 548 bool applyAllState); 549 void applySidebandState(struct hwc_layer_1& hwc1Layer, 550 bool applyAllState); 551 void applyBufferState(struct hwc_layer_1& hwc1Layer); 552 void applyCompositionType(struct hwc_layer_1& hwc1Layer, 553 bool applyAllState); 554 555 static std::atomic<hwc2_layer_t> sNextId; 556 const hwc2_layer_t mId; 557 Display& mDisplay; 558 size_t mDirtyCount; 559 560 FencedBuffer mBuffer; 561 std::vector<hwc_rect_t> mSurfaceDamage; 562 563 LatchedState<HWC2::BlendMode> mBlendMode; 564 LatchedState<hwc_color_t> mColor; 565 LatchedState<HWC2::Composition> mCompositionType; 566 LatchedState<hwc_rect_t> mDisplayFrame; 567 LatchedState<float> mPlaneAlpha; 568 LatchedState<const native_handle_t*> mSidebandStream; 569 LatchedState<hwc_frect_t> mSourceCrop; 570 LatchedState<HWC2::Transform> mTransform; 571 LatchedState<std::vector<hwc_rect_t>> mVisibleRegion; 572 uint32_t mZ; 573 574 DeferredFence mReleaseFence; 575 576 size_t mHwc1Id; 577 bool mHasUnsupportedDataspace; 578 bool mHasUnsupportedPlaneAlpha; 579 }; 580 581 template <typename ...Args> callLayerFunction(hwc2_device_t * device,hwc2_display_t displayId,hwc2_layer_t layerId,HWC2::Error (Layer::* member)(Args...),Args...args)582 static int32_t callLayerFunction(hwc2_device_t* device, 583 hwc2_display_t displayId, hwc2_layer_t layerId, 584 HWC2::Error (Layer::*member)(Args...), Args... args) { 585 auto result = getAdapter(device)->getLayer(displayId, layerId); 586 auto error = std::get<HWC2::Error>(result); 587 if (error == HWC2::Error::None) { 588 auto layer = std::get<Layer*>(result); 589 error = ((*layer).*member)(std::forward<Args>(args)...); 590 } 591 return static_cast<int32_t>(error); 592 } 593 594 template <typename MF, MF memFunc, typename ...Args> layerHook(hwc2_device_t * device,hwc2_display_t displayId,hwc2_layer_t layerId,Args...args)595 static int32_t layerHook(hwc2_device_t* device, hwc2_display_t displayId, 596 hwc2_layer_t layerId, Args... args) { 597 return HWC2On1Adapter::callLayerFunction(device, displayId, layerId, 598 memFunc, std::forward<Args>(args)...); 599 } 600 601 // Layer state functions 602 setLayerBlendModeHook(hwc2_device_t * device,hwc2_display_t display,hwc2_layer_t layer,int32_t intMode)603 static int32_t setLayerBlendModeHook(hwc2_device_t* device, 604 hwc2_display_t display, hwc2_layer_t layer, int32_t intMode) { 605 auto mode = static_cast<HWC2::BlendMode>(intMode); 606 return callLayerFunction(device, display, layer, 607 &Layer::setBlendMode, mode); 608 } 609 setLayerCompositionTypeHook(hwc2_device_t * device,hwc2_display_t display,hwc2_layer_t layer,int32_t intType)610 static int32_t setLayerCompositionTypeHook(hwc2_device_t* device, 611 hwc2_display_t display, hwc2_layer_t layer, int32_t intType) { 612 auto type = static_cast<HWC2::Composition>(intType); 613 return callLayerFunction(device, display, layer, 614 &Layer::setCompositionType, type); 615 } 616 setLayerDataspaceHook(hwc2_device_t * device,hwc2_display_t display,hwc2_layer_t layer,int32_t intDataspace)617 static int32_t setLayerDataspaceHook(hwc2_device_t* device, 618 hwc2_display_t display, hwc2_layer_t layer, int32_t intDataspace) { 619 auto dataspace = static_cast<android_dataspace_t>(intDataspace); 620 return callLayerFunction(device, display, layer, &Layer::setDataspace, 621 dataspace); 622 } 623 setLayerTransformHook(hwc2_device_t * device,hwc2_display_t display,hwc2_layer_t layer,int32_t intTransform)624 static int32_t setLayerTransformHook(hwc2_device_t* device, 625 hwc2_display_t display, hwc2_layer_t layer, int32_t intTransform) { 626 auto transform = static_cast<HWC2::Transform>(intTransform); 627 return callLayerFunction(device, display, layer, &Layer::setTransform, 628 transform); 629 } 630 setLayerZOrderHook(hwc2_device_t * device,hwc2_display_t display,hwc2_layer_t layer,uint32_t z)631 static int32_t setLayerZOrderHook(hwc2_device_t* device, 632 hwc2_display_t display, hwc2_layer_t layer, uint32_t z) { 633 return callDisplayFunction(device, display, &Display::updateLayerZ, 634 layer, z); 635 } 636 637 // Adapter internals 638 639 void populateCapabilities(); 640 Display* getDisplay(hwc2_display_t id); 641 std::tuple<Layer*, HWC2::Error> getLayer(hwc2_display_t displayId, 642 hwc2_layer_t layerId); 643 void populatePrimary(); 644 645 bool prepareAllDisplays(); 646 std::vector<struct hwc_display_contents_1*> mHwc1Contents; 647 HWC2::Error setAllDisplays(); 648 649 void hwc1Invalidate(); 650 void hwc1Vsync(int hwc1DisplayId, int64_t timestamp); 651 void hwc1Hotplug(int hwc1DisplayId, int connected); 652 653 // These are set in the constructor and before any asynchronous events are 654 // possible 655 656 struct hwc_composer_device_1* const mHwc1Device; 657 const uint8_t mHwc1MinorVersion; 658 bool mHwc1SupportsVirtualDisplays; 659 660 class Callbacks; 661 const std::unique_ptr<Callbacks> mHwc1Callbacks; 662 663 std::unordered_set<HWC2::Capability> mCapabilities; 664 665 // These are only accessed from the main SurfaceFlinger thread (not from 666 // callbacks or dump 667 668 std::map<hwc2_layer_t, std::shared_ptr<Layer>> mLayers; 669 std::shared_ptr<Display> mHwc1VirtualDisplay; 670 671 // These are potentially accessed from multiple threads, and are protected 672 // by this mutex. This needs to be recursive, since the HWC1 implementation 673 // can call back into the invalidate callback on the same thread that is 674 // calling prepare. 675 std::recursive_timed_mutex mStateMutex; 676 677 struct CallbackInfo { 678 hwc2_callback_data_t data; 679 hwc2_function_pointer_t pointer; 680 }; 681 std::unordered_map<HWC2::Callback, CallbackInfo> mCallbacks; 682 bool mHasPendingInvalidate; 683 std::vector<std::pair<int, int64_t>> mPendingVsyncs; 684 std::vector<std::pair<int, int>> mPendingHotplugs; 685 686 std::map<hwc2_display_t, std::shared_ptr<Display>> mDisplays; 687 std::unordered_map<int, hwc2_display_t> mHwc1DisplayMap; 688 }; 689 690 } // namespace android 691 692 #endif 693